31历史轨迹

Administrator

2023-07-25 50401e5ee6d80fa6d181eb39304b0985689ae4fd

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var nativeFunctionToString = require('./_function-to-string');
var WeakMap = require('./_global').WeakMap;
 
module.exports = typeof WeakMap === 'function' && /native code/.test(nativeFunctionToString.call(WeakMap));